An ideal gas is compressed from 298 K and 200 kPa to 800 kPa in an adiabatic compressor with an efficiency of η. The temperature of the surroundings is Tσ. Determine the following: (a) the final temperature (K). (b) the work required (J/kg) (c) the enthalpy change (J/kg) (d) the lost work (J/kg)  Use the following data: Gas: Carbon Dioxide  C=37.139 J/mol·K  η or efficiency=75% Tσ= 295K

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.